Tehuantepec Forecast

March 17, 2026, 9:01 am (UTC: -04:00)
Subject: Tehuantepec Forecast

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This forecast has not been reviewed. It was generated from an automatic model.

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 40
KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 16N93W TO 16N95W TO
15N96W TO 14N96W TO 13N94W TO 14N94W TO 16N93W N WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 14N96W TO 14N95W TO
15N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 30
TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 14N94W TO 16N94W
TO 15N96W TO 12N98W TO 12N96W TO 13N95W TO 14N94W N TO NE WINDS
20 TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 14N93W TO
16N94W TO 14N97W TO 11N99W TO 12N96W TO 11N95W TO 14N93W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.30 HOUR FORECAST WITHIN 15N94W TO 15N96W TO 13N97W TO 11N99W TO
12N97W TO 13N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M.
ELSEWHERE WITHIN 14N93W TO 16N94W TO 13N98W TO 10N100W TO 10N97W
TO 12N94W TO 14N93W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M. WITHIN
10N99W TO 11N101W TO 10N103W TO 08N103W TO 08N102W TO 09N100W TO
10N99W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.

.WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 40
KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 16N93W TO 16N95W TO
15N96W TO 14N96W TO 13N94W TO 14N94W TO 16N93W N WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 14N96W TO 14N95W TO
15N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 30
TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 14N94W TO 16N94W
TO 15N96W TO 12N98W TO 12N96W TO 13N95W TO 14N94W N TO NE WINDS
20 TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 14N93W TO
16N94W TO 14N97W TO 11N99W TO 12N96W TO 11N95W TO 14N93W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.30 HOUR FORECAST WITHIN 15N94W TO 15N96W TO 13N97W TO 11N99W TO
12N97W TO 13N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M.
ELSEWHERE WITHIN 14N93W TO 16N94W TO 13N98W TO 10N100W TO 10N97W
TO 12N94W TO 14N93W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M. WITHIN
10N99W TO 11N101W TO 10N103W TO 08N103W TO 08N102W TO 09N100W TO
10N99W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.

...SPECIAL FEATURES...
GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN
HIGH PRESSURE BUILDING ACROSS EASTERN MEXICO AND THE EQUATORIAL
TROUGH IS SUPPORTING GALE FORCE GAP WINDS IN THE TEHUANTEPEC
REGION, WITH SEAS PEAKING NEAR 11 FT. GALE FORCE WINDS WILL
CONTINUE THROUGH TONIGHT BEFORE DIMINISHING EARLY WEDNESDAY.
NEAR- GALE FORCE GAP WINDS AND ROUGH SEAS MAY PULSE ACROSS THE
TEHUANTEPEC REGION THU AND FRI.
PLEASE SEE SPECIAL FEATURES ABOVE FOR MORE ON A GALE WARNING IN
THE GULF OF TEHUANTEPEC.
ASIDE FROM THE GULF OF TEHUANTEPEC, A WEAK PRESSURE GRADIENT IS
GENERATING LIGHT TO GENTLE WINDS ACROSS MUCH OF THE FORECAST
AREA, EXCEPT LOCALLY MODERATE WINDS OFF CABO SAN LUCAS AND CABO
CORRIENTES. MODERATE SEAS PREVAIL OVER THE OPEN WATERS, WITH
SLIGHT SEAS IN THE GULF OF CALIFORNIA.
FOR THE FORECAST ASIDE FROM THE GULF OF TEHUANTEPEC GALE WARNING,
A WEAK PRESSURE PATTERN OVER THE REGION WILL MAINTAIN GENTLE TO
MODERATE BREEZES AND AND MODERATE SEAS OVER THE OPEN WATERS OFF
MEXICO, WITH SLIGHT TO MODERATE SEAS IN THE GULF OF CALIFORNIA.

FOR THE FORECAST, LARGE NE SWELL GENERATED BY THE GALE FORCE GAP
WIND EVENT IN THE GULF OF TEHUANTEPEC WILL IMPACT THE OFFSHORE
WATERS OF GUATEMALA THROUGH LATE WED. GENTLE BREEZES AND MODERATE
SEAS WILL PREVAIL ELSEWHERE THROUGH LATE IN THE WEEK.

FOR THE FORECAST, LARGE N TO NE SWELL GENERATED FROM THE UPCOMING
GULF OF TEHUANTEPEC GALE FORCE GAP WIND EVENT WILL BRIEFLY BRING
ROUGH SEAS MAINLY FROM 08N TO 12N AND EAST OF 100W TONIGHT AND
WEDNESDAY. OTHERWISE, MODERATE OR WEAKER WINDS AND MODERATE SEAS
WILL PREVAIL ACROSS THE REGION THROUGH THE LATTER PART OF THE
WEEK.

SHORT-TERM TEHUANTEPEC
TODAY - N 26-33, Seas NNW 11.8-12.8 ft @ 8sec
TONITE - N 22-28, Seas NNW 9.8-10.5 ft @ 8sec
WEDNESDAY - N 22-28, Seas NNW 9.8-10.5 ft @ 8sec
WEDNESDAY NIGHT - NNW 18-23, Seas SSW 4.6-5.7 ft @ 14sec

LONG-TERM TEHUANTEPEC
THURSDAY - NNW 26-33, Seas SSW 6.2-7.1 ft @ 17sec
FRIDAY - N 22-28, Seas SSW 5.8-6.8 ft @ 15sec
SATURDAY - N 14-17, Seas SSW 3.2-4.6 ft @ 14sec
SUNDAY - N 8-10, Seas SW 1.5-3.7 ft @ 13sec
MONDAY - SW 7-9, Seas N/A ?-? ft @ ?